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Bryan Head committed 6cda830 Draft

Patches now only redraw on set_pcolor if the new_color is different than the old.

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Files changed (1)

 @patches
 class Patch
   pcolor:  "black"
-  set_pcolor: (newColor) -> @pcolor = newColor; @draw()
+  set_pcolor: (newColor) ->
+    if newColor!=@pcolor
+      @pcolor = newColor
+      @draw()
   constructor: (@pxcor, @pycor) ->
   draw: ->
     # FIXME patches don't seem to always seem to paint perfectly in their cell.
     s = world.patch_size
     patchCtx.fillRect lPixX, tPixY, s, s
 
+
+@patch_no_wrap = (x, y) ->
+  rows = world.max_pycor-world.min_pycor+1
+  row = Math.round(y-world.min_pycor)
+  col = Math.round(x-world.min_pxcor)
+  patches[rows*col + row]
+
 @patch = (x, y) ->
   rows = world.max_pycor-world.min_pycor+1
   cols = world.max_pxcor-world.min_pxcor+1
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